baber/WOPTO huggingface dataset:
Patent EP-0456337-A2 (EP)
Inventor: SHARPLES PAUL ROBERT
IPC: H01Q1/32
Filed: 1991-01-14
Abstract: A radio receiver antenna system for overcoming multiple path propagation fading comprising: an antenna arrangement (1) which provides respectively at two terminals (9,11) in response to a given transmitted signal, two signals (V a ,V b ) at the frequency of the transmitted signal as are respectively produced by two antennas having different reception characteristics; and combining means (T1,T2, 35 to 59) for producing an output at the frequency of the transmitted signal by combining the signals produced at said terminals (9,11) in such manner that said output is significant for substantially all values of the relative phase of said two signals; said combining means (T1,T2, 35 to 59) comprising an inductive winding (49) to opposite ends of which said two signals are respectively applied and means for deriving an output (V o ,V o ʼ) from a tapping point on the winding (49) or from a second winding (53), inductively coupled to said first-mentioned winding (49). 
     Preferably a first output (V o ) is derived from a tapping point on said first mentioned winding (49).
Patent EP-0449618-A2 (EP)
Inventor: SEARBY ANTHONY DAVID
IPC: G06F3/048
Filed: 1991-03-27
Abstract: A video graphics system is provided with a framestore 3 and a viewing store 10. The framestore 3 is arranged to receive new image data created by a processor 6 in response to user manipulations of a stylus/touch tablet device 1. The framestore 3 and the viewing store 10 both have the capacity to store a high definition image and to facilitate display of the image on a high definition monitor 13 the framestore is arranged to transfer only portions of its data contents to the viewing store 10 during a frame period. The portion transferred is determined by the position of the stylus on the touch tablet at the beginning of a frame period. Data in the viewing store 10 is output in faster sequence for display on the monitor 13.
Patent EP-0499237-A2 (EP)
Inventor: BABA HIROYUKI
IPC: H04R31/00
Filed: 1992-02-12
Abstract: An electret capacitor microphone (ECM) can be assembled by an automatic assembly machine, and has an excellent thermal resistance against the influence of heat during the assembly. The ECM includes a cylindrical metal gate ring which is to be subjected to a caulking force, instead of an insulator made of a resin having a lower thermal resistance. The ECM has an amplifier block consisting of a first assembly sub-block having a backplate and the metal gate ring, and a second assembly sub-block having an FET and a printed circuit board so as to be assembled by an automatic assembly machine.
Patent EP-0508119-A2 (EP)
Inventor: YEATER ROBERT P
IPC: C08G65/332
Filed: 1992-03-09
Abstract: The present invention is directed to a novel solvent-free process for preparing amine terminated compounds by reacting a polyfunctional acetoacetic acid ester with either ammonia or an organic compound which contains one or more primary amino groups in the presence of an acidic catalyst selected from the group consisting of (i) boron trifluoride etherate and (ii) organic acids having pKa values of from 0.1 to 0.8.
Patent EP-0508558-A2 (EP)
Inventor: CRAMER LUDGER DIPL-PHYS
IPC: G01N21/21
Filed: 1992-04-03
Abstract: Probe light reflected or transmitted by a test piece in an ellipsometer apparatus is to be analysed as completely as possible and with high precision. The signal evaluation (complete determination of the Stokes' vector) is to be carried out in real time. The analyser unit contains, in four stages, constructionally identically moduls (24) which are each equipped with an optical element as polariser (25) and an optoelectrical detector (18) and which, as discrete elements, simultaneously measure selected components of the probe light of different polarisation. Residual light modified in accordance with natural-law relationships governing the state of polarisation and the degree of polarisation is fed from one stage to the next. The apparatus is used, for example, for process control and for optimising the production parameters of semiconductor materials. <IMAGE>
Patent EP-0525980-A2 (EP)
Inventor: YAMASHITA TOSHIHIRO
IPC: G06F11/267
Filed: 1992-06-26
Abstract: In a method of inspecting an active matrix substrate of the invention, the active matrix substrate includes a pixel portion having a plurality of pixels arranged in a matrix, a plurality of scanning lines and data lines for driving the pixel portion, and a drive circuit having one and more video lines, one end of each of the plurality of data lines being connected to one of the video lines. The method of the invention includes the steps of: providing one or more inspecting lines, the other end of each of the plurality of data lines being connected to one of the inspecting lines; applying an inspecting signal to each of the inspecting lines, with the drive circuit being in operation; and inspecting the drive circuit and the plurality of data lines, based on at least one of the signals output from the or each of the video lines in accordance with the inspecting signals.
Patent EP-0568746-A2 (EP)
Inventor: BLAUCH MATTHEW E
IPC: E21B47/10
Filed: 1992-12-21
Abstract: Stimulation related characteristics of a subterranean zone penetrated by a well bore are determined, prior to stimulating the zone, by injecting into the zone a stimulation fluid having an X-ray contrasting agent therein, obtaining one or more preserved core samples from the zone; scanning the core samples with X-rays and computing tomographic images; and determining the characteristics of the zone from the tomographic images.
Patent EP-0581226-A2 (EP)
Inventor: UENO MASATO
IPC: A61C13/15
Filed: 1993-07-24
Abstract: A photopolymerization reactor for dental use composed of a light of sources emitting at least visible light and infrared light transparent cells charged with coolant disposed to the emission side of said light source, whereby absorb infrared light; and a board for mounting a formed article which is composed of materials for a pattern made of photopolymerizable resin, impinging the light thereon from the light source after transmitting through said cells, wherein the tranparent cell is composed of disc-like shaped main body having a hollow space therein which is formed integrally with heat resistant glass; and two glass pipes for circulation of coolant which is disposed to the cell main body communicated to the hollow space.
Patent EP-0587138-A2 (EP)
Inventor: CIPOLLA ROBERTO
IPC: G06T7/20
Filed: 1993-09-08
Abstract: A 3D human interface apparatus using a motion recognition based on a dynamic image processing in which the motion of an operator operated object as an imaging target can be recognized accurately and stably. The apparatus includes: an image input unit (1) for entering a plurality of time series images of an object operated by the operator into a motion representing a command; a feature point extraction unit (2) for extracting at least four feature points including at least three reference feature points and one fiducial feature point on the object, from each of the images; a motion recognition unit for recognizing the motion of the object by calculating motion parameters, according to an affine transformation determined from changes of positions of the reference feature points on the images, and a virtual parallax for the fiducial feature point expressing a difference between an actual position change on the images and a virtual position change according to the affine transformation; and a command input unit for inputting the command indicated by the motion of the object recognized by the motion recognition unit.
Patent EP-0588253-A2 (EP)
Inventor: AMORESE MICHELANGELO
IPC: C08L77/00
Filed: 1993-09-10
Abstract: A polymeric blend and a fuel container made of this blend. The blend has improved resistance to fuel and includes:
     (a) a copolymer obtained from copolymerization of ε-caprolactam, and a substance selected from the group consisting of: 
   an aminocarboxylic acid having a carbon atom number not lower than 9, 
   a lactam corresponding to said aminocarboxylic acid and 
   an aminoacid having a carbon atom number not lower than 11 or a mixture of a diamine with a dicarboxylic acid having a carbon atom number not lower than 9; and   (b) a polyolefin polymer with functional groups selected from the group consisting of carboxyl groups, esters, anhydrides, and carboxylates.
Patent EP-0607539-A2 (EP)
Inventor: HEVENOR CHARLES M
IPC: B41J11/00
Filed: 1993-11-29
Abstract: A method and apparatus for preparing graphic products utilizes a printer (20) to print on sheet material (S) and a cutter (22) to cut the sheet material (S) with the printed material within the periphery of the cut edges (C). Both the printer (20) and the cutter (22) are controlled by machine readable data having a common data base so that the printed material and the cut material correspond positionally in the final graphic product. The printer (20) is a thermal printer (40) that places the printed material on a strip of sheet material (S) generally before the sheet material is cut. The thermal printer (40) utilizes a donor web (W) bearing a transfer ink to create enhanced printed images on the sheet material with halftones, color and other attractive features. The printer (40) is controlled to regulate a number of printing parameters (256-260) through coding (270) on a cassette (170) in which the donor web (W) is supported.
Patent EP-0603788-A2 (EP)
Inventor: TAKAI HITOSHI
IPC: H04B1/707
Filed: 1993-12-20
Abstract: A data receiving apparatus is disclosed. The receiving apparatus receives a spread spectrum signal prepared by modulating data with a carrier wave to produce a data modulated signal and multiplying the data modulated signal with a spreading signal which has a bandwidth greater than that of the data modulated signal. The receiving apparatus has three bandpass filters (211, 212, 213) for passing three different band portions of a full band (a) of the spread spectrum signal and respectively producing a bandpass signal, a detector (22) for detecting an intermediate signal from the bandpass signal and for producing a detection signal, and a reception state evaluation device (24) for detecting the current reception state of the detector (22) and for producing a poor reception signal, when said detector (22) is in a poor reception state. The poor reception signal is used for changing current band to another band.
Patent EP-0613135-A2 (EP)
Inventor: KONDO MASAMICHI
IPC: G11B20/10
Filed: 1994-02-24
Abstract: An optical disc system uses a recordable MD (mini disc) which can be applied to a multi-media system mass storage, such as a CD-ROM. In an optical disc system in which data of n sectors and added data of m sectors are error-corrected in a CIRC (Cross Interleave Reed-Solomon code) fashion ad error-corrected data is recorded on an MD (16) at the unit of        l + n + m           sectors (l is the number of link sectors), when data is recorded and (or) reproduced, a rotational speed of the MD (16) is selected to be (        l + m + n          ) times at least. When n is 32 sectors, m is 1 sector, the rotational speed is 9/8 times and a maximum data transfer rate is selected to he 150 kB/s, data in a CD-ROM (10) can he recorded on the MD (16) at substantially the same transfer rate as the maximum data transfer rate (150 kB/s) of the CD-ROM (10).
Patent EP-0617385-A2 (EP)
Inventor: SHIGEKUSA HISASHI
IPC: G07C5/08
Filed: 1994-03-24
Abstract: An object of the present invention is to provide a task completion confirmation system for vehicles which allows crew members to carry out their tasks correctly by automatically displaying the tasks which have been completed. A garbage truck (10) goes to a plurality of garbage collecting areas (20) to collect garbage. When the garbage truck (10) comes near or reaches the garbage collecting area (20), a communication device (40) is capable of communicating with a response device (50) in a display plate (21). It writes into a storage circuit (33) data indicating garbage collecting points (20), progress of task, and the like, based on the communication. Accordingly, the crew members are able to collect garbage at each of the garbage collecting areas (20), without making any mistakes.
Patent EP-0606929-A2 (EP)
Inventor: MIHARA TADASHI
IPC: G02F1/1343
Filed: 1988-11-10
Abstract: A liquid crystal apparatus comprises a) a liquid crystal device comprising an electrode matrix composed of scanning electrodes and data electrodes, and a ferroelectric liquid crystal; and b) a driving means. The driving means includes a first drive means for applying a scanning selection signal two or more scanning electrodes apart in one vertical scanning so at to effect in one picture scanning in plural times of vertical scanning, and a second drive means for applying data signals in synchronism with the scanning selection signal.
Patent EP-0639879-A2 (EP)
Inventor: ZUERCHER JOSEPH CHARLES
IPC: G01R31/02
Filed: 1994-08-19
Abstract: In an electric circuit supplying AC line current to a load (30, 31) from an AC source (26) of given frequency providing repetitive cycles, arc detection is provided by sensing cycle to cycle changes in the AC line current. The AC line current is sampled with a harmonic notch filter (72) at a plurality of n phases Θ₁ through Θ n  during each of a plurality of m cycles of the AC source (26), to provide a plurality of currents I n,m , where n is the phase and m is the cycle. The differences (I n,m )-(I n,m-x ), where x is a designated number of cycles, provide a plurality of current difference signals. The absolute values of these current difference signals ID are accumulated in a synchronous summer (94) over the m cycles. An arc indicative signal is generated in response to given conditions and given combinations of conditions (116) of the cumulative absolute current difference signals ID. Cycle to cycle changes in AC line voltage are also sensed with a harmonic notch filter (146), and the arc indicative signal is disarmed in response to a given voltage condition. In further embodiments, subcycle changes are sensed.
Patent EP-0660245-A2 (EP)
Inventor: HARRISON CALVIN WAYNE
IPC: G06F17/10
Filed: 1994-12-01
Abstract: An arithmetic engine (11) includes a first dual multiplier accumulator (MAC 12) for receiving input data and for producing first dual MAC output (21) data. A second dual MAC (13) is coupled in parallel to the first dual MAC (12). The second dual MAC (13) receives input data and produces second dual MAC output (19) data. Adder array (14) is coupled to both the first dual MAC (12) and to the second dual MAC (13). The adder array (14) receives the input data, the first dual MAC output data, and the second dual MAC output data and produces arithmetic engine output data. Each dual MAC (12, 13) comprises a multiplier cross point switch (42), multiplier registers (46), a register selector (50), and parallel multipliers (52, 54). Each adder array (14) comprises a cross point switch (84), adder registers (86), a register selector (88), adder (92), and condition code determiner (94).
Patent EP-0621746-A2 (EP)
Inventor: COHEN ISAAC
IPC: H05K1/14
Filed: 1994-04-20
Abstract: A composite printed circuit board includes a metal substrate printed circuit section (12) and an insulation substrate printed circuit board section (14). The metal substrate printed circuit section (12) includes a first layer of a thermally conductive metal (32) for providing high thermal conductivity, and a second layer (28) made of a thermally conductive and electrically insulative material disposed adjacently to said first layer (32). The second layer (28) has an upper surface upon which electrically conductive wiring (26) may be disposed. The insulator substrate printed circuit board section (14) forms an integral surface with the metal substrate printed circuit section (12). The insulator substrate printed circuit section (14) further includes a first layer (34) of insulative material, and a second layer (36) of a metallic foil disposed adjacently to at least one side of said first layer of insulative material for forming a conductive wiring layout.
Patent EP-0636374-A2 (EP)
Inventor: TSENG CHUNG-YE
IPC: A61K47/38
Filed: 1994-07-27
Abstract: A personal lubricant composition containing an antiviral, alkylphenoxypolyethoxyethanol spermicide, a water soluble polymer gel matrix and a solubilizer which permits the spermicide to be compatible with the gel matrix. Preferably, a polyethoxylated compound such as polyethoxylated castor oil may be used.
Patent EP-0662642-A2 (EP)
Inventor: KOHTAKI TAKAAKI
IPC: G03G9/08
Filed: 1994-12-23
Abstract: A toner for developing an electrostatic image is constituted by a binder resin and a long-chain compound. The binder resin is a polyester resin or vinyl resin respectively having an acid value of preferably 25 - 70 mgKOH/g. The long-chain compound is a long-chain alkyl alcohol having an OH value of 10 - 120 mgKOH/g or a long-chain alkyl carboxylic acid having an acid value of 5 - 120 mgKOH/g and is contained so as to satisfy a condition of the following formula (1) or formula (2) :
     Formula (1) acid value of binder resin + OH value of long-chain alkyl alcohol > (1/4) x OH value of binder resin, or   Formula (2) acid value of binder resin + acid value of long-chain alkyl carboxylic acid > (1/4) x OH value of binder resin. The toner is characterized by a good balance between fixing performances and developing performances suitable for a variety of models of image forming apparatus and in wide ranges of environmental conditions.
Patent EP-0669113-A2 (EP)
Inventor: WILCOX MALCOLM W C O MINNESOTA
IPC: A61C9/00
Filed: 1995-02-27
Abstract: A cartridge for delivery of aqueous paste dental materials is provided, wherein the cartridge comprises a cartridge body made from an injection moldable material comprising polyolefin polymers. The cartridge body having a Moisture Permeability less than 25 g mil/m 2  day atm. and an Oxygen Permeability greater than 180 cm 3  mil/m 2  day atm. The cartridge body comprises at least one chamber adapted for holding and simultaneously dispensing an aqueous paste dental material. The cartridge has a polymerizable aqueous paste dental material contained within the chamber of the cartridge body, and the cartridge is specially adapted to be mounted in a hand-held ejector-type gun.
Patent EP-0674046-A2 (EP)
Inventor: KOENIG JOACHIM DR
IPC: D21H21/02
Filed: 1995-03-08
Abstract: A method for fixing interfering anionic impurities in the prodn. of paper comprises the addn. of cationic polycondensates (I) as interceptors. (I) are obtd. by reacting (a) a mono- or poly-functional amine contg. one or more prim. and/or sec. and/or tert. amino gps. with (b) cyanamide, dicyandiamide, guanidine or biguanidine, up to 50 mole% of which may be replaced by a dicarboxylic acid or a mono- or di-ester thereof, with cleavage of ammonia, opt. in the presence of a catalyst. Pref. (I) are used together with cationic or non-ionic auxiliary paper additives, retention agents, dewatering agents, wet strength improvers based on polyamide-amine/epichlorhydrin, cationic or non-ionic wet strength improvers based on hydrophilic polyisocyanates, and conventional cationic internal sizing agents.
Patent EP-0681059-A2 (EP)
Inventor: ESKOLA TIMO
IPC: D21F7/02
Filed: 1995-04-21
Abstract: Spreading rolls are used in conjunction with, e.g., finishing equipment of paper mills to assure sufficient and constant cross-machine tension for the web running over guide rolls. Spreading is required due to web width variations caused by the coating, drying and calendering steps. A spreading roll comprises a curved shaft (1) with its radius of curvature vector aligned in the machine direction and rotary driven roll segments (6) mounted in bearings on the shaft. The roll segments are coupled to each other and they are driven about the shaft by a synchronous belt drive. The curvedness of the shaft complicates the design of a synchronous belt drive, and hence, the present invention concerns such a synchronous belt drive assembly for a web spreading roll that is free from angular nonalignment between the driving and the driven toothed pulley. The invention is based on mounting the driven toothed pulley (8) in bearings on the bearing housing of the curved spreading roll shaft and then coupling the pulley (8) with the outermost roll segment (6) using a flexible coupling (10).
Patent EP-0718237-A2 (EP)
Inventor: KONDO MITSUJI
IPC: A01K1/015
Filed: 1995-08-16
Abstract: A method for activating smectite clays to give swelling power and/or dispersibility in an aqueous electrolyte solution and resulting activated smectite clays are disclosed, the method comprising previously adding an adequate amount of an aprotic polar solvent having a higher relative permittivity than those of alcohols (e.g., N,N-dimethylformamide, N,N-dimethylacetamide, ethylene carbonate, propylene carbonate or dimethyl sulfoxide) to an aqueous electrolyte solution in which the clays (or the clays previously suspended) are to be swollen and/or dispersed, or treating the clays to be swollen and/or dispersed with the compound.
Patent EP-0708248-A2 (EP)
Inventor: FISCHER PETER
IPC: F04D29/16
Filed: 1995-10-10
Abstract: The compressor has a 2-part housing (1,2) containing a rotary paddle wheel (4) having a number of paddle blades (6) attached to a carrier ring (5), fitted to a driven hub (7). The compression space between the paddle wheel and the housing is sealed in the vicinity of the carrier ring by radial sealing rings (8), on either side of the latter. The sealing rings are each held by a respective retaining ring (10), secured to a bearing surface provided by one or other part of the compressor housing. Pref. the retaining rings are secured by screws, each sealing ring having a notch for locating the end face of the carrier ring.
Patent EP-0681267-A2 (EP)
Inventor: SODERBERG BRIAN T
IPC: G06T15/00
Filed: 1995-05-03
Abstract: An image generator architecture (10) in which tri-level fixed interleave processing provides medium grain parallelism for polygon, tiling, and pixel operations. Input data at each stage are divided into spatially distributed subsets that are interleaved among parallel processors (11, 12, 26) using a fixed, precalculated mapping that minimizes correlation of local scene complexity with any one processor. The present tri-level fixed interleave processing architecture (10) divides a processing task into a pseudo-random, fixed interleaved pattern of regions that are assigned to different processors. Each processor processes many of these randomly located regions. The assignment of processors to regions is a fixed repeating pattern. The highest level of fixed interleave processing is the allocation of fixed-size database regions (area modules) to polygon processors (11, 12, 26). The next level relates to image subregion fixed interleave processing. At this level, the displayed image is divided into small sub-regions that are assigned to tilers (20) in a pseudo-random, but fixed manner. This levels the load across all pixel processors. Typically, tilers process a large contiguous area of the image. The present invention uses small sub-regions (64x64 pixels) and assigns many sub-regions from different channels to a single tiler (20). Each tiler maintains equal loading even with localized regions of high pixel processing. The third level relates to two-by-two pixel, fixed interleave processing. The image is further divided into 2x2 pixel blocks spread across multiple pixel operators (26) on a tiler (20). This fine grain parallelism, in a fixed pseudo-random orientation, ensures equal loading across all pixel processors (26). The second aspect of the present invention is the use of polygon and pixel distribution buses (14, 15). Maximum image generator configurability, expansion, and efficient processing is required for a variety of simulator configurations used in networked training environments. To accomplish this, distribution buses are implemented between all graphics processing stages.